Question

(0.6a-0.7b)^2
please answer it step by step solution​

Answer 1

Step-by-step explanation:

Chapter 2

1. In how many ways can 5 different trees be planted in a row?

5P5 = 5! = 120

2. How many subsets of S = {1, 2, 3, . . . , 100} contain 2 elements?

Answer 2

Step-by-step explanation:

Here is the answer. HOPE IT HELPS